(1)A. Winter. B. Summer C. Spring
(2)A. In her bag.. B. In her desk. C. On her desk.
(3)A. On foot. B. By bicycle. C. By bus.
(4)A. She likes the white and brown one.
B. She likes both birds.
C. She likes the brown one.
(5)A. They are in the library.
B. They are in the shop.
C. They aren’t in the library or in the shop.
(6)A. He is doing his homework.
B. He is making a paper aero plane.
C. He did his homework yesterday.
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2